C# program to sort names in ascending and descending order

I have a string of user names seperated by semi colon. I want a c# program that can sort these names in both ascending and descending order.


string strUserNames = "Rob;Mike;Able;Sara;Peter;John;Tom;Ben";


using System;


namespace SamplePrograms
{
    class SortNamesInAscendingAndDescendingOrder
    {
        public static void Main()
        {
            // Prompt the user to enter the list of user names
            Console.WriteLine("Please enter list of names seperated by semi colon");
            
            // Read the user name list from the console
            string strUserNames = Console.ReadLine();


            // Sampe list of user names that can be used as an input
            // strUserNames = "Rob;Mike;Able;Sara;Peter;John;Tom;Ben";


            // Split the string into a string array based on semi colon
            string[] arrUsersNames = strUserNames.Split(';');


            // Print the names before sorting using foreach loop
            Console.WriteLine("Names before sorting");
            foreach (string UserName in arrUsersNames)
            {
                Console.WriteLine(UserName);
            }


            // Sort the elements in the array in ascending order
            Array.Sort(arrUsersNames);


            // Print the elements of the array after sorting
            Console.WriteLine("Names after sorting in ascending order");
            foreach (string UserName in arrUsersNames)
            {
                Console.WriteLine(UserName);
            }


            // Reverse the elements in the sorted array to get
            // the elements in descending order
            Array.Reverse(arrUsersNames);
            
            // Finally print the elements
            Console.WriteLine("Names after sorting in descending order");
            foreach (string UserName in arrUsersNames)
            {
                Console.WriteLine(UserName);
            }


            Console.ReadLine();
        }
    }
}